Frida Waterfall was the great-granddaughter of Old Man Waterfall and the sister of Hutch Waterfall. She lead the eco-feminist group, the Feministas, in order to protest violations against nature. However, despite her protests, she never actually meant for her group to have any effect, but after the accidental killing of the vice president, Spiro Agnew, the group became more focused on sabotage, and installed Turanga Leela as its leader, though Frida remained communications director.

Her job as communications director was even satirized by Leela because of her constant awful feminine puns on common words or phrases. Frida was killed when she was attacked by a Dark One after considering the message she was to tell Leela from Fry.